Example 1.2.7: helminth resistance in sheep

Weaning weight (kg) of lambs, offspring of eight sires, under high helminth challenge (Table 1.2.7 and Appendix A of the book).

Usage

ex127

Format

A data frame with 43 rows and 2 variables:

sire

sire: 1 to 8.

Ww

weaning weight.

Source

Duchateau, L., Janssen, P. and Rowlands, G. J. (1998). Linear Mixed Models. An Introduction with Applications in Veterinary Research. International Livestock Research Institute, Nairobi. Appendix A.

See also

Examp2.4.3.1

Other VetResearchLMM data: ex121, ex122, ex123, ex124, ex125, ex126, ex31, ex32, ex33

Examples

str(ex127)
#> 'data.frame':	43 obs. of  2 variables:
#>  $ sire: int  1 1 1 2 2 2 2 2 2 2 ...
#>  $ Ww  : num  11.1 10.8 11.3 15.9 13 12.6 14.6 13.6 12.5 15.7 ...